diff --git a/http4k/pom.xml b/http4k/pom.xml
index fc185c8..e2329ad 100644
--- a/http4k/pom.xml
+++ b/http4k/pom.xml
@@ -109,7 +109,7 @@
     <dependency>
       <groupId>org.eclipse.jetty</groupId>
       <artifactId>jetty-server</artifactId>
-      <version>11.0.20</version>
+      <version>11.0.21</version>
       <scope>test</scope>
     </dependency>